Light levels are carefully controlled to fall within an acceptable level for____

游客2025-03-20 37

问题 Light levels are carefully controlled to fall within an acceptable level for______ reading convenience.

选项 A、intentional
B、ideal
C、obligatory
D、standard

答案 B

解析 ideal“理想的”；intentional“有意的”；obligatory“强制性的”；standard“标准的”。按句意只能选ideal。

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Lightlevelsarecarefullycontrolledtofallwithinanacceptablelevelfor____